Buyers often ask which standard to specify. Many standards describe similar washers with small differences in dimensions and tolerances.
- DIN 125 / ISO 7089 – metric flat washers, normal series
- DIN 9021 – large-diameter flat washers
- DIN 127 / GB 93 – spring lock washers
- DIN 6797 / DIN 6798 – toothed lock washers
- ASME B18.21.1 / B18.22.1 – inch washers
We produce to GB, DIN, ISO, ANSI (IFI), JIS, BS and AS standards. If you are unsure, send us the application and bolt size and we will recommend the right standard.